SESSION MANAGEMENT METHOD ACCORDING TO APPLICATION OF USER EQUIPMENT POLICY IN WIRELESS COMMUNICATION SYSTEM

According to an embodiment of the present disclosure, a policy control function (PCF) entity for managing policies may be provided. The PCF entity may transmit, to a user equipment via an Access and Mobility Management Function (AMF), URSP information including first data network name (DNN) information, identify a triggering event for updating the URSP, transmit, to the user equipment via the AMF based on the identified triggering event, updated URSP information including second DNN information, transmit, when transmitting the updated URSP information including the second DNN information, a Session Management Function (SMF) selection management trigger message to the AMF, and receive a user equipment policy update request message from the AMF when a request from the AMF for at least one of a first DNN corresponding to the first DNN information or a third DNN is detected.